BMW just announced a cool new nav system, but the 6 series is conspicuously absent from the list of cars that will get it (5, 5GT, 7, Active Hybrid 3). The new system is called iDrive Navigation Professional (609). The pricing guide for the 2013 6 series shows a nav system with the same number (609). Is this the new nav or the old one? Also, does anyone know if a simple firmware/software upgrade will get you the new look and new features?